Sudoku Online

Sudoku Online

Rating: 0.0/10 ☆☆☆☆☆

Platforms: Mobile, Tablet, Window

Game engine: html5

Description

Classic, Killer, Master, X-Sudoku, Windoku, Points

How to play

The goal is to fill a × grid with digits from to so that each digit appears exactly once in every row, column, and × box. Some cells are pre-filled — these are your starting clues.
Begin with cells that have the most filled neighbors: fewer options make it easier to identify the correct digit. As cells are filled in, the choices for adjacent ones narrow down — the puzzle unfolds as a chain of logical steps.
Use the notes mode to write down multiple candidates in a cell and eliminate them as the grid fills up. This is especially useful at Hard and Expert levels.
Additional modes come with extra rules. In X-Sudoku, digits must also be unique along both main diagonals. In Windoku, extra highlighted regions apply the same uniqueness rule. In Killer Sudoku, groups of cells must add up to a given sum. In Kropki, markers between cells define relationships: a white dot means the two digits differ by , a black dot means one is exactly twice the other.
Train your mind!

Explore More:

If you enjoyed this game, you'll love exploring more titles in our Casual collection. We've handpicked a variety of Casual games that offer similarly engaging gameplay, from quick casual sessions to more challenging levels. Titles like Block It bring a fresh twist with their own unique mechanics, while Sprunki Differences offers a different pace for players who enjoy strategic thinking. If you're in the mood for something else entirely, Hexa Go! is another fan favorite worth checking out. All these games are free to play instantly in your browser, with no downloads or sign-ups required — just pick one and start playing.

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